Hi there, There is of course a risk of transmission of HIV when having unprotected sex. Unprotected oral sex is low risk but the fact that you had unprotected penetrative sex could be a risk factor. Even if the penetrative unprotected sex was for only a few seconds, this also does not rule out the chance of transmission but this is not to say that transmission occurred - most sex workers test regularly and are aware of their status. The symptoms you have described are similar to those usually experienced during the seroconversion period for HIV. However, they could also be due to stress. I know it is tedious and worrying to have to wait to test again, but the only way to know your status is to test. The fact of the matter is, that HIV is now treatable. If diagnosed early on, a HIV positive individual can now live a normal, healthy life (if on treatment). Ultimately it is better that you know your status and being aware of your status allows you to make informed choices in the future. I really hope I have not worried you more. Your negative results, although performed inside of the window period, are good indications of your status but just be sure to retest at 12 weeks or 4 weeks depending on the generation of the test used. Thank you, if you need me to explain anything in more detail please let me know. Kindest regards, Becky